Concrete building construction.



No. 836,683 PATBNTED NOV. 27, 1906. J. B. HINCHMAN.

CONCRETE BUILDING CONSTRUCTION.

APPLICATION FILED SEPT.9,1905.

UNITED STATES PATENT OFFICE.

JAMES B. ,HINCH -AN, or DENVER, COLORADO em ee; euuome. cous1"sue-rum.

No. sss,ess.

' Specification of Letters Patent,

Patented nov. 27.1908.

Original application filed June 24, 1904, Serial Nb. 213,970. Divided and this application filed September 9, 1905 Serial Fag'ILBtiQ' To all whom it may concern:

Be it known that I, JAMES B. citizen of the United States of America, ,re siding new and ifiseiul Improvements in Concrete Building Construction, of which the followmg is a specification, reference being had therein to the-accompanying drawings, this it has for its rimary object to provide'a ratively inexpenshearing-arm t atis com sive to manufacture an one which at the same time may be applied to the various bar shapes used in building construction.

My invention consists in the novel form of shearing-rod and thesimple means for attaching the same to the various shapes of bar-iron hereinafter describe'dand claimed.

- Referring to the accompanying drawings, forming a part of this specification, wherein corresponding numerals in the'several figures designate like parts, Figure 1 is a longitudinal sectional view of a concrete. beam or slab constructed in accordance with my iniprovement. Fig. 2 is a cross-sectionalview on the line 2 20f Fig. L Fig. 3 is a detached detail perspective vlew of a portion of a chaning-arm. Fig'zA is a fragmentary sectional nel-bar provided with a novel form of shearview showing a novel manner of attaching a shearing-arm to a channel-bar. Fi 5 is a v detail perspective view showing a s caringmanner as shown-in Fig. 4 and Fig. 6 is a desiOn-rod.

shearing-arms having their each series extending in opposite direc arm J attached tov a channel-bar 'in the same tail perspective view showing- -a modified form of attaching ther'shejaring-arm to a ten- InFig. '1 of solid concrete be'am'or slab avmg'a channelbar or other form-oi tension-rod 2 embedded therein; 3 and 4'denote res ective series of lease secured in any desirable manner to'the channel-b? 2, ions HmonMArI, a

at, Denver, in the county of Denver? and state of Colorado, have invented certain 'As shown in Fig. 6, t

:sisting of a tensionrrod havingta I I shearm -arms, each shearing-arm ein comthe drawin s, 1 designates a 0% being 2. A tension-rod for composite building purposes consisting of a tension-rod having v fromthe other." The series desi ated'3isef the ordinary construction; butt e series dieslgnated 4 is constructed according to my 1mrovement, the 'shearing arms in this series vm'g their arms split a short distance, the

pip'lit' portions 5 and 6 beh g bent in opposite irections. g h In Figs; 4 and 5' I- have shown novel means for securing the form'of shearing-arm shown in Fig; 3 to a channel or other former" bar, as

the case may be, this means consisting in cutting a tenon 7 on the end of the arm, passing the samethrough acorres ond'ing open ing in the web 'portion of the ar, and then 'upsettingthe tenon,

The shearing-arms shown in Figs, 1 2, and

openings in the ends of the shearing-arms and the channel-bar, respectively, and then riveted in the ordinary manner.

The modified constructionshown in Fig. 6 is along the same broad lines as the constructionshown in Figs. 1 to 5 and shows how the arm 4. may be connected to the tension-bar without riveting. In this instance the shearing-arm is made entirely of sheet metal and has its lower end provided with two openings '12 and bentvupon itself, so that the openings 12 are oppositely disposedzto one another. e shearing-arm is aplied to a bar circular in cross section; but it rsobvious that it could be as well applied to a bar of any other shape-by varyin .the size and contour of the openings 12'. j owever,

in every instance the openings must be somewhat larger than the diameter of the bar itself to makeallowance for the space taken up in the. diagonal direction of the openings with respect to the bar; The form or shear- ,3 are secured m position upon the -bar 2 by means of rivets 8,.which are passed throng ing-arm shown in Fig. 6 is fastened to the bar by means ,of a nail,lwedge, or other similar member 11, the member 11 being inserted between the under surface of the bar and the b'ent portion of the shearing-arm..

Having described In invention, 1 claim-1 .1. A tension-rod for uilding purposes conurality of posed a fiat bar having its free end s t and the two portions formed by slitting the ends bent opposite directions.

shearing arms removably mounted at an angle thereon, said shearing arms consisting opposite directions.

purposes comprising a rod ands, mavable fiat sash 0f aflst bar having its free and fowmedl with a plurality ofiprojeoting membsmbant.

3. A tension-rad for somnssits building shsm'mg-a1m,,said armvhsving two holes in. its end and that end bent on itself-between ssid holes, saidrod passin 'thmugh saidholes, and means securing t 6 mm against lmngitudinai-mavemeht on the rod 4. At teensionfi'od for compasits building pulyases having shearing-wins remavably skid upwsrly at angles to the body of the mmmtsd= atarr anglie; thsrssn tbs said arms hsving- (ms of their ends bent downwardly arm and said bentend having apertures thrsugh wihichitha tension-rod. extends, and segregable means for wearing the shearing arms t0 the tsnsi0n-r0d.

In testimony whersof I afim my signature 2o in-the presence of two Witnesses.

JAMES B. HINCHMAN.

Witnesses:

E. W. HINGMAN, .CAL'VVINN Roma. 

